摘要
提出一种基于多约束波束形成的伪卫星远近效应抑制方法(CLCMV),通过约束优化伪卫星的波束方向,对伪卫星信号功率强度进行抑制,使得伪卫星信号功率与真实导航信号强度一致,数字仿真和性能分析验证了这种方法的有效性。
Pseudolite technology could remarkably improve and enhance the regional performance of Global Navigation Satellite System. Whereas in practical applications, far-near effect seriously affects the normal reception of pseudolite signal for receivers. The array antenna pattern control can effectively reduce near-far effect, this paper introduces a new method based on the multiple constraints beamforming, called CLCMV. The new method can adjust the power intensity of the pseudolite through constraining the beam derection to make the power intensity of the pseudolite accord with the real navigational satellite. The method is confirmed by digital simulation and performance analysis.
出处
《科学技术与工程》
北大核心
2013年第5期1191-1195,共5页
Science Technology and Engineering
基金
国家自然科学基金(60802083
61271416)
航天支撑基金(2012-HT-XGD)
总装预研基金(9140A24011210DZ30)资助
关键词
伪卫星
远近效应
多约束
CLCMV
Pseudolite
Near-far effect
Multiple Constraints
CLCMV
